<template>
  <Dialog :title="dialogTitle" v-model="dialogVisible">
    <el-form
      ref="formRef"
      :model="formData"
      :rules="formRules"
      label-width="100px"
      v-loading="formLoading"
    >
      <el-form-item label="名称" prop="name">
        <el-input v-model="formData.name" placeholder="请输入名称" />
      </el-form-item>
      <el-form-item label="省份" prop="province">
        <el-radio-group v-model="formData.province" @change="handleProvinceChange">
          <el-radio
            v-for="dict in getStrDictOptions(DICT_TYPE.PROVINCE)"
            :key="dict.value"
            :label="dict.value"
          >
            {{ dict.label }}
          </el-radio>
        </el-radio-group>
      </el-form-item>
      <!-- 隐藏的省份key表单项 -->
      <el-form-item prop="provinceName" v-show="false">
        <el-input v-model="formData.provinceName" hidden />
      </el-form-item>
      <el-form-item label="排序" prop="sort">
        <el-input v-model="formData.sort" placeholder="请输入排序" />
      </el-form-item>
    </el-form>
    <template #footer>
      <el-button @click="submitForm" type="primary" :disabled="formLoading">确 定</el-button>
      <el-button @click="dialogVisible = false">取 消</el-button>
    </template>
  </Dialog>
</template>
<script setup lang="ts">
import { getStrDictOptions, DICT_TYPE } from '@/utils/dict'
import { SchoolApi, SchoolVO } from '@/api/kf/school'

/** 院校 表单 */
defineOptions({ name: 'SchoolForm' })

const { t } = useI18n() // 国际化
const message = useMessage() // 消息弹窗

// 表单校验规则
const formRules = reactive({
  name: [
    { required: true, message: '请输入名称', trigger: 'blur' }
  ],
  province: [
    { required: true, message: '请选择省份', trigger: 'change' }
  ]
})

const dialogVisible = ref(false) // 弹窗的是否展示
const dialogTitle = ref('') // 弹窗的标题
const formLoading = ref(false) // 表单的加载中：1）修改时的数据加载；2）提交的按钮禁用
const formType = ref('') // 表单的类型：create - 新增；update - 修改
const formData = ref<Partial<SchoolVO>>({
  id: undefined,
  name: undefined,
  province: undefined,
  provinceName: undefined,
  sort: undefined,
})
const formRef = ref() // 表单 Ref

/** 监听名称变化，自动选择省份 */
watch(() => formData.value.name, (newName) => {
  if (!newName) {
    // 当名称为空时，清除省份选择
    formData.value.province = undefined
    formData.value.provinceName = undefined
    return
  }
  
  const provinceOptions = getStrDictOptions(DICT_TYPE.PROVINCE)
  // 遍历所有省份，检查名称中是否包含省份名称（不包含省、市等后缀）
  for (const province of provinceOptions) {
    // 移除省份名称中的"省"、"市"等后缀
    const provinceName = province.label.replace(/[省市自治区]/g, '')
    if (newName.includes(provinceName)) {
      formData.value.province = province.value
      formData.value.provinceName = province.label
      break
    }
  }
})

/** 打开弹窗 */
const open = async (type: string, id?: number) => {
  dialogVisible.value = true
  dialogTitle.value = t('action.' + type)
  formType.value = type
  resetForm()
  // 修改时，设置数据
  if (id) {
    formLoading.value = true
    try {
      formData.value = await SchoolApi.getSchool(id)
    } finally {
      formLoading.value = false
    }
  }
}
defineExpose({ open }) // 提供 open 方法，用于打开弹窗

/** 提交表单 */
const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调
const submitForm = async () => {
  // 校验表单
  await formRef.value.validate()
  // 提交请求
  formLoading.value = true
  try {
    const data = formData.value as unknown as SchoolVO
    if (formType.value === 'create') {
      await SchoolApi.createSchool(data)
      message.success(t('common.createSuccess'))
    } else {
      await SchoolApi.updateSchool(data)
      message.success(t('common.updateSuccess'))
    }
    dialogVisible.value = false
    // 发送操作成功的事件
    emit('success')
  } finally {
    formLoading.value = false
  }
}

/** 处理省份变更 */
const handleProvinceChange = (value: string) => {
  // 当省份选择变更时，找到对应的label并设置到provinceName
  const provinceOptions = getStrDictOptions(DICT_TYPE.PROVINCE)
  const selectedProvince = provinceOptions.find(item => item.value === value)
  if (selectedProvince) {
    // 使用类型断言确保TypeScript知道这是一个有效的赋值
    formData.value.provinceName = selectedProvince.label as string
  } else {
    formData.value.provinceName = undefined
  }
}

/** 重置表单 */
const resetForm = () => {
  formData.value = {
    id: undefined,
    name: undefined,
    province: undefined,
    provinceName: undefined,
    sort: undefined,
  } as Partial<SchoolVO>
  formRef.value?.resetFields()
}
</script>